<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>16110100521</title>
	<style>
		.box{
			width: 200px;
			height: 200px;
			border: 1px solid #c00;
			float: left;
		}
		#container{
			width: 1200px;
			overflow: hidden;
/*		清除溢出	溢出部分隐藏*/
		}
	
	
	
	</style>
</head>

<body>
	<div id="container">
	    <div class="box">1</div>
	    <div class="box">2</div>
	    <div class="box">3</div>
	    <div class="box">4</div>
	    haha
	</div>
</body>
</html>
